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The comet reached minimum elongation on 13 March, on 25°. [4] It reached its peak brightness in April. Jacobson spotted the comet with naked eye on April 18. David H. Levy reported that the comet had an apparent magnitude of 4.7 with the naked eye on April 24. In the end of April the tail of the comet was reported to be up to 2–3 degrees long.
Little is known of what people thought about comets before Aristotle, who observed his eponymous comet, and most of what is known comes secondhand.From cuneiform astronomical tablets, and works by Aristotle, Diodorus Siculus, Seneca, and one attributed to Plutarch but now thought to be Aetius, it is observed that ancient philosophers divided themselves into two main camps.
The comet was discovered by the Japanese amateur astronomer Kaoru Ikeya on 3 July 1964. It was the second comet discovered by Kaoru Ikeya, after C/1963 A1. The comet was located in the morning sky, in the constellation of Taurus, at the star cluster Hyades, and had an estimated apparent magnitude of 8. The comet was moving southeast. [3]
Soon after the first orbital elements could be calculated, it was suggested that the comet would become "a bright object, that could be observed with unaided eye."It was found to combine three favorable characteristics that made it an exceptional comet for observation: a short perihelion distance, a short distance from Earth, and high intrinsic brightness. [9]
The comet was reported to have a nuclear shadow, a dark lane in the tail, and was marginally visible with naked eye on that day. [10] On 7 January the comet was reported to be of first magnitude, with a tail about 20 arcminutes long. [5] The comet was photographed by cosmonaut Ivan Vagner onboard the International Space Station on 10 January. [11]
For observers in the Northern Hemisphere, the comet could be seen on the northwestern horizon, below the Big Dipper. North of 45 degrees north, the comet was visible all night in mid-July 2020. On July 30, Comet NEOWISE entered the constellation of Coma Berenices, below the bright star Arcturus. NEOWISE was retroactively dubbed the Great Comet ...
Scientists say comet C/2023 A3 Tsuchinshan-ATLAS is visible once every 80,000 years, and people across North America were treated to stunning views. Striking photos show stunning, once-in-a ...
The comet was first photographed by astronomer Lin Chi-Sheng (林啟生) with a 0.41-metre (16 in) telescope at the Lulin Observatory in Nantou, Taiwan on July 11, 2007. . However, it was the 19-year-old Ye Quanzhi (葉泉志) from Sun Yat-sen University in China, who identified the new object from three of the photographs taken by Lin